/Engine/Plugins/Online/OnlineSubsystem/Source/Public/OnlineKeyValuePair.h
Copies the data after verifying the type
void GetValue ( [TArray](API\Runtime\Core\Containers\TArray)< [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< class [FJsonValue](API\Runtime\Json\Dom\FJsonValue) >> & OutData ) const